GRAVITATION, ASTROPHYSICS 
Cosmological consequences of a spontaneous breakdown of a discrete symmetry

1

NUCLEI, PARTICLES AND THEIR INTERACTIONS 
The correspondence principle in the problem of the selfenergy of the electron

6

Some paritynonconservation effects in emission by hydrogenlike atoms

8

ATOMS, SPECTRA, RADIATION 
As discharge laser operating on the iodine 1315nm transition

14

Application of zero range potentials in the theory of collisions of electrons with molecules

18

Resonant charge exchange of alkaliearth ions

23

Polarization effects of the selfaction of a light beam in a resonant medium

27

Twophoton correlations in synchrotron radiation as a method of studying the beam

30

Role of exchange in the excitation of ions by electrons

32

Resonance stimulated Raman scattering of ultrashort light pulses

36

Perturbationtheory calculations of twoquantum relaxation processes

41

PLASMA, GASES 
Measurement of microwave scattering by low frequency turbulent plasma oscillations

43

Nonequilibrium highfrequency discharge in wave fields

46

Interaction between a plasma jet and a chemically active ionized gas target

49

Nonlinear Landau damping in an inhomogeneous plasma

53

Spacetime focusing of an ion beam that excites transverse Langmuir ion plasma oscillations

57

Anomalous interaction of strong laser radiation with dense plasma

61

A kinetic equation for a plasma in a highfrequency field

69

SOLIDS, LIQUIDS 
Change of electric conductivity of semiconductor crystals by passage of a shock wave from a laser pulse

75

Quantum theory of the inelastic scattering of channeled particles

77

Saturation of inhomogeneously broadened EPR line at low temperatures

82

Effect of scattering processes on the anomalies in the thermodynamic characteristics of superconductors under pressure

85

The influence of condensate motion on the thermoelectric effects in superconductors

90

Nuclear relaxation via electronspin cross relaxation

94

Anomalous Hall effect in holmium single crystal in the region of helicoidal magnetic ordering

98

Observation of the heating of the dipoledipole interaction pool of impurity ions in nuclear relaxation

101

Behavior of zerogap semiconductors with a linear dispersion law in strong magnetic fields

104

Effect of localized states in a barrier on electron tunneling

106

Unidirectional anisotropy in lnvar

111

Resonance size effect in highfrequency conductivity of thin metallic plates in the absence of a static magnetic field

113

Magnetic anisotropy of yttriumholmium iron garnets

117

Dislocation slowing down by electrons in metals in strong magnetic fields

121

Paramagnetic effect of the twodimensional mixed state in typel superconductors

126

The theory of the solution of two nearideal Bose gases

132

Piezopolaron energy at large momenta

137

Helicon propagation in semiconductors in a quantizing magnetic field

139

Parametric pairs in antiferromagnet with easy plane anisotropy

144

Effect of magnetic dilution on the critical temperature of few dimensional antiferromagnetic CuWO_{4}

154

Retardation effect in cyclotron resonance

158

Investigation of the surface conductivity of tin in a magnetic field by a highfrequency technique

166

Domain structure and magnetic properties of YFeO_{3} particles below the singledomain critical size

171

Current state of semimetals with paramagnetic impurities

175

Sound absorption in metals at high temperatures

181

Electron scattering by a vortex lattice in a mixedstate superconductor

188

Critical indices for systems with slowly decaying interaction

195

Possible phase transitions in systems of interacting metallic filaments (quasiunidimensional metals)

198

Oscillations in films of superfluid solutions

208
